User`s guide

OTDR Mode 1 Getting Started

E6000C Mini-OTDR User’s Guide, E0302

Relative to both markers The following parameters are measured between marker

A and marker B. The recorded values change when you

move either marker.

• A-B: the distance between the markers

• One of the following (selectable in the [A

NALYSIS]

menu):

– 2pt.L: 2-point loss between the markers. This is the

difference in power level between the marker points

– 2pt.Attn.: 2-point attenuation. This is the 2-point

loss per length unit.

– LSA-Attn.: LSA Attenuation. This is the least

square approximation for the fiber loss per length

unit between the markers.

– ORL: Optical Return Loss. This represents the

fraction of power reflected back to your Mini-OTDR.

Relative to current marker The following parameters show values at the current

marker. The recorded values change when you move or

change the current marker.

• Ins.L. at A/B: the insertion loss of the event close

to the marker.

• Refl. at A/B: the return loss (in dB) of the event

close to the marker.

• Cum.L. to A/B: the cumulative loss between the

initial backscatter value interpolated to the start of the

fiber, and the marker point.

General parameters The following parameters are independent of the marker

position.

• Range: the start position and the measurement span,

selectable from the [S

ETTINGS] menu. The available

Ranges are module-dependent.